IO is a very important point in the Java interview. You should have a good grasp of Java Io,nio,nio2 and the basics of disk IO related to the operating system. The following are frequently asked questions in Java IO.66) in my Java program, I have three sockets, how many threads do I need to handle?How do I create a bytebuffer in Java?In Java, how do I read and write Bytebuffer?is Java using big-endian or sm
operation: Normal mode, edit mode, and command mode.③ keyboard input in normal mode any character is executed as a command, or you can enter a command to move the cursor, character, word, line copy, paste, and delete.④ edit mode is used primarily for text input. In this mode, any characters entered by the user are saved as the contents of the file.⑤ Command mode, the user can do some things such as String lookup, replace, display line number, etc. or must enter the command mode.⑥ enter a colon
Java learning path-simple basic interview questions, java path-Questions
1. What are the features of object orientation?
A: The object-oriented features mainly include the following:
1) Abstraction: Abstraction refers to the process of summarizing the common features of a class of objects to construct classes, including data abstraction and Behavior Abstraction.
Summary of interview questions and summary of questions
1. Describe the animation mechanism in detail2. Describe the event mechanism3. Description: Measure and Layout. Draw process. When the size of a subclass changesWhat kind of chain reaction will it cause?4. What are the four main components of Android? 4 startup modes of Activity5. Start the Service in two w
[Programmer interview questions selected 100 questions] 11. Search for binary tree images.[Question]
Enter a binary search tree and convert it to its image. That is, in the converted Binary Search Tree, the nodes in the left subtree are greater than those in the right subtree. Use recursive and cyclic methods to convert tree images.
For example, enter:
8/\6 10/\/
PHP Interview Questions and Answers, php Questions and answers
1. Write a function to implement the following functions:Convert the string "open_door" to "OpenDoor" and "make_by_id" to "MakeById ".Function str_change ($ str ){$ Str = str_replace ("_", "", $ str );$ Str = ucwords ($ str );$ Str = str_replace ("", "", $ str );Return $ str ;}
2. Write a program to c
Summary of HTML interview questions H5, questions h51. What are the new features of H5 and what elements are removed? How to deal with the compatibility of new h5 labels in browsers and how to distinguish between html and html5
1. html5 is not a subset of SGL (General Markup Language), but includes: image, location, storage, multitasking, and other functions.
2.
Java exception architecture diagram and several interview questions, java architecture diagram questions
1. java exception Architecture
The pink ones are checked exceptions, which must be captured by the try {} catch Block or declared by the throws clause in the method signature. the CHecked Exception must be captured and processed during compilation. The name i
understand the process of solving the problem, and find out what the individual has done, how to do, and what has been harvested. This is the accumulation of experience. The company ultimately needs to contribute to the work of the staff, so the need for experienced people to help solve the problem, then the ability to solve problems and thinking is very important. For students who do not have much experience, such as a new graduate or an intern, then they need a good foundation and some person
10 most common HTML5 Interview Questions and Answers, html5 Questions and answers
1. What is the new HTML5 document type and character set? HTML5 document type is simple: HTML5 uses UTF-8 Encoding
2. How to embed audio in HTML5? HTML5 supports audio in MP3, Wav, and Ogg formats.
3. How to embed videos in HTML5? Similar to audio, HTML5 supports MP4, WebM, and Ogg
Common Database interview questions and database questions
Paradigm 1: Each column in a database table is a basic data item that cannot be further divided. values or duplicate attributes are not allowed. For example, if a table contains a phone number field, the value has a mobile phone number, there is another seat number, which does not match.Summary: fields c
Js interview questions-inheritance of js, js questions-js
Js is a flexible language. There are often multiple ways to implement a function. ECMAScript does not have a clear Inheritance Mechanism, but is achieved through imitation. According to the characteristics of js, js implementation inheritance has the following common methods:1. Use object impersonating to
10 classic Java interview questions and classic java questions
1. How does Java's HashMap work?
HashMap is a key value for the data structure. Each key has a corresponding value. The key is to identify such a value.
Based on the hashing principle, HashMap stores and obtains objects through put () and get () methods. When we pass a key-value pair to the put () m
Computer Network interview questions, computer network questions
1,OSI Layer-7 protocol,Layer-4 TCP/IP protocol,Five-Layer Protocol mentioned in instructor Xie xiiren's online textbookComparison
Note:
(1) OSI's layer-7 protocol is only a theoretical protocol, which is not actually used.
(2) the architecture of the layer-4 TCP/IP protocol in practice.
(3) The fiv
Ddchuxing -- Summary of php interview questions and ddchuxingphp questions
1. Differences between echo and print
Echo has no return value. print has return value 1. If the execution fails, false is returned. echo outputs faster than print because no return value exists. echo can output one or more strings, print can only output one string. print can be used for c
PHP interview questions, php questions
Tip: Set the PHP file character encoding header ("content-type: text/html; charset = UTF-8") before the test code ");
1.
1.1 Use PHP to get the current time and print it. Format: 22:19:30
2.
2.1 convert string to array
$ Str = "www.baidu.com ";$ Arr_str =Explode('.', $ Str );Print_r ($ arr_str); // Array ([0] => www [1] =>
Java interview questions, java questions
1. storage structures used by stacks and queues
Chain storage and sequential Storage
2. understanding of time complexity and space complexityTime Complexity: Number of statement executions in an algorithm, which is T (n). When n changes, it is O (f (n). For example, constant O (1 ), O (n2), O (nlog2n)Space complexity: t
This article focuses on the question of Ajax questions and answers, you can take a look at the interview of those who are how to issue, and see what the correct answer is. Now, let's see this article.
1. Do you interact with the background during work? Well, can you tell me a few parameters in the encapsulated Ajax?
URL: The address where the request was sent.
Type: The request method (post or get) defaults
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